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aivan3 [116]
3 years ago
5

Part 2: a) Write VHDL code for a top module that invokes necessary components to display the four decimal digits on four seven-s

egment displays of a NEXYX 4 FPGA. The top module takes the 100 MHz FPGA clock, a reset signal, an enabler signal as the inputs. b) Makes necessary changes in a constraint file to implement your design on the FPGA and present only the uncommented parts of the constraint file in your exam script.
Computers and Technology
1 answer:
dimulka [17.4K]3 years ago
7 0
I don’t know ‍♀️ sorry
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When patel’s advertising co. decided to upgrade its computer network, many people were involved in the decision. In b2b buying s
babunello [35]

In b2b buying systems, decisions are often made by by a committee after a lot of considerable deliberation.

<h3>What is Business-to-Business service?</h3>

Business-to-business is known to be a kind of a scenario where one business is said to often makes a commercial transaction with another kind of business.

The B2B decision-making process is known to be made up of some discrete tasks such as:

  • Knowing that there is an issue or need.
  • Examining  and comparing the available alternative or solutions
  • Defining the requirements that is needed for the product and others.

Hence, In b2b buying systems, decisions are often made by by a committee after a lot of considerable deliberation.

Learn more about b2b from

brainly.com/question/26506080

#SPJ1

4 0
2 years ago
5. Why would you want to wear white or light colors on a summer day?
vfiekz [6]

A. White absorbs all light and reflects none so it is cooler.

3 0
3 years ago
What is the final gear reduction of a compound gear reduction of 36 to 12 for the first stage and 60 to 12 for the second stage?
OverLord2011 [107]

Answer:

8

Explanation:

Gear reduction = driven gear teeth / driving gear teeth

First stage reduction :

Driven gear teeth = 36

Driving gear teeth = 12

36 /12 = 3

Second stage reduction :

Driven gear teeth = 60

Driving gear teeth = 12

60 /12 = 5

First stage + second stage

3 + 5 = 8

5 0
3 years ago
When you are almost done with your soup and want to get at the last little bit, how should you do this 2
pav-90 [236]

Answer:

<u>B. Tip the bowl slightly, then spoon up the last bit</u>

Explanation:

Generally speaking none of the other answers made much of sense.. "tip the bowl from side to side" doesn't help you at all, neither does "Keep spooning as much as you can, then stop eating". Neither of these will help you spoon up the last little bit, <u>the most logical answer is B. "Tip the bowl slightly, then spoon up the last bit"</u>. If this is not the correct answer then it'd be D, but I don't believe/feel that it's "poor etiquette" to "leave the last little bit".

7 0
3 years ago
Consider the following general code for allowing access to a resource:
Margaret [11]

Answer:

a) The code allows access even when  IsAccessAllowed(...) method fails.

b) Either use If

(dwRet = ACCESS_ALLOWED)

or use

if (dwRet == NO_ERROR)

to avoid flaw

Explanation:

Lets first see what the code chunk does:

DWORD dwRet = IsAccessAllowed(...);

if (dwRet == ERROR_ACCESS_DENIED) {

// Security check failed.

// Inform user that access is denied.

} else {

// Security check OK.

}

In the given code, DWORD is basically a data type for double word type integers and this is defined in windows.h

So there is DWORD type variable dwRet that is assigned a method calls.

The method is IsAccessAllowed() which checks if the access is allowed to user.

if (dwRet == ERROR_ACCESS_DENIED) condition basically checks if the value of DWORD type variable dwRet is equal to ERROR_ACCESS_DENIED

If this condition evaluates to true then the security checks fails and user is informed via some message or action that the access is denied.  But when the if condition evaluates to false then the else part executes which allows access.

So basically this chunk of code checks if the error ERROR_ACCESS_DENIED is returned.

Now the flaw in this program is what if the method IsAccessAllowed() by any reason. The reasons can be system failure or the memory failure. In memory failure case for example, the system returns out of memory error. So this means that the error is not  ERROR_ACCESS_DENIED. Instead it is out of memory error. So in such a case the user is allowed access as the if condition evaluates to false and else part executes. So if any other error is produced due to some reason like mentioned above, then user has unrestricted access.

This shows that the doe should not check for the failure or rely on checking ERROR_ACCESS_DENIED to allow access but instead it should check for success. Code should only give access privilege if access is allowed successfully or no error is produced.

So to avoid this flaw the code is altered as:

DWORD dwRet = IsAccessAllowed(...);

If (dwRet = ACCESS_ALLOWED) {

//Security check OK.

} else {

//Security check failed.

//Inform user that access is denied.

}

This will only allow access if ACCESS_ALLOWED evaluates to true and success is checked instead of failure here

You can also alter the if condition as:

If (dwRet = No_Error)

or

If (dwRet = 0)

The above if conditions checks if the access is allowed or if no error is produced. Only then it will allowed access otherwise not. So the access check is a success is checked first and failure (for any reason). The user is allowed access only if there is no error otherwise user is not allowed access.

6 0
3 years ago
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